DOAJ is a community-curated list of open access journals and aims to be the starting point for all information searches for quality, peer reviewed open access material.
All articles in open access journals which are published by Elsevier have undergone peer review and upon acceptance are immediately and permanently free for everyone to read and download.
PLOS is a nonprofit Open Access publisher, innovator and advocacy organization with a mission to accelerate progress in science and medicine by allowing access to peer-review articles and research.